原文: Practical Guide for Performing, Teaching, and Singing Messiah. The key word in the title is practical. Leonard Van Camp.
译文: 实用指南表演,教学和歌唱弥赛亚. 伦纳德范营. 实用指南表演,教学和歌唱弥赛亚. 表演教学. Composed by Leonard Van Camp and Leonard Van camp. 圣诞. 文本. 发布时间由罗杰院长出版. LO.30-1004.